#include <bits/stdc++.h>
using namespace std;


void solve()
{
 int x;
 cin>>x;
 if(x>=3&&x<=5)
 {
  cout<<"spring";
 }else if(x>=4&&x<=8)
 {
  cout<<"summer";
 }else if(x>=9&&x<=11)
 {
  cout<<"fall";
 }else
 {
  cout<<"winter";
 }

}

int main(void) {


  int t; 
  t=1;

  while (t--) {
    solve();
  }
}